1. DO NOW #21.5 On a separate sheet of paper, use the ladder method and convert the following: 1.256 m = ______ cm 2.97.25 cm = ______ mm 3.8.26 kL = ______ mL 4.8.5743 cm = ______ km 25, 600 972.5 8, 260, 000.000085743

3. Paper Helicopters Experiment!

4. GET EXCITED!

5. What makes a helicopter, a helicopter? How does it move? Propeller blade, wings Tail Engine Air transportation Material it is made of

6. What factors affects the motion of a helicopter? Wing length Mass Wind Engine size Shape

7. OUR QUESTION: What factors affect the flight time of a paper helicopter?

8. What is the independent variable? FLIGHT TIME What is the dependent variable? WING LENGTH

9. PURPOSE: To see how the wing length affects the flight time of a paper helicopter.

10. Making the Helicopter STEP 1: Cut on the solid lines STEP 2: Fold on the dotted lines

11. Making the Helicopter